Le 17/05/2026 à 08:37, Rosen Penev a écrit :
The PPC4xx GPIO driver stopped assigning an explicit parent
to the gpio_chip when it moved away from of_mm_gpiochip_add_data().
Restore that association from the platform device so OF GPIO lookup
can match phandles to the registered gpiochip.
Tested on: Cisco MX60W. No more probe deferral.
Assisted-by: Codex:GPT-5.5
Fixes: 1044dbaf2a77 ("powerpc/44x: Change GPIO driver to a proper platform
driver")
Signed-off-by: Rosen Penev <[email protected]>
Reviewed-by: Christophe Leroy (CS GROUP) <[email protected]>
---
arch/powerpc/platforms/44x/gpio.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/44x/gpio.c
b/arch/powerpc/platforms/44x/gpio.c
index aea0d913b59d..4413a94cf7a6 100644
--- a/arch/powerpc/platforms/44x/gpio.c
+++ b/arch/powerpc/platforms/44x/gpio.c
@@ -169,6 +169,7 @@ static int ppc4xx_gpio_probe(struct platform_device *ofdev)
gc = &chip->gc;
+ gc->parent = dev;
gc->base = -1;
gc->ngpio = 32;
gc->direction_input = ppc4xx_gpio_dir_in;
